How can you tell if Onions (cut/chopped) has gone bad?

Signs that Onions (cut/chopped) has gone bad: Slimy texture; Dark wet patches; Sour smell beyond normal sharpness, mold.

What does the date label on Onions (cut/chopped) mean?

Onions (cut/chopped) usually doesn't carry a printed date label — judge by storage time and the spoilage signs above.

Produce

How long does Onions (cut/chopped) last?

Q: How long does Onions (cut/chopped) last?

In the fridge: 7–10 days. In the freezer: 3 months. Sealed / unopened: N/A. Keep in an airtight container to contain the smell. Frozen chopped onions are great for cooking.

Medium confidence Quality concern

How long does Onions (cut/chopped) last? fridge 7–10 days, freezer 3 months. Plus spoilage signs, sources, and an unopened-vs-opened note.

Fridge

7–10 days

Pantry

Refrigerate only

Freezer

3 months

Sealed / unopened: N/A

Signs Onions (cut/chopped) has gone bad

Slimy texture.
Dark wet patches.
Sour smell beyond normal sharpness, mold.

Discard immediately if

Any green tint on potatoes (solanine — toxic)
Soft, leaking, or moldy
Strong off smell

Why guidance varies

Fresh produce ripening depends on ethylene-gas exposure, storage temperature, humidity, and time since harvest — duration estimates assume typical home conditions, not optimal commercial storage.

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Sources for this answer

A USDA FoodKeeper — Storage windows and refrigeration guidance for this category.
A FDA — Are You Storing Food Safely? — Date-label interpretation and food-safety baseline.

Reviewed: 2026-05 · Rule: if manufacturer storage instructions are stricter than category guidance, the manufacturer instructions win.